- Warten bis der Frieden kommt (Ein berührendes Jugendbuch über die Zeit des Zweiten Weltkrieges, Rosa...
- Waste: At the Source
- Waste: The Global View
- Water Bodies
- Water Runs Through This Book
- We Are Here
- We Recycle
- We the People: Civic Values in America
- Weather
- Weather Prediction
- Weather Projects for Young Scientists
- Weathering and Erosion
- Weird Sea Creatures
- Well Earth Well Me!
- Weltuntergang 2017
- Whales
- What a Scientist Sees
- What Children Can Teach Adults About Mathematics
- What Do Living Things Need?
- What Happened When in the World
- What Is Climate Change?
- What Is Earth Day?
- What Is NASA?
- What Is the Coronavirus Disease COVID-19?
- What the Dog Knows Young Readers Edition
- What Was Hurricane Katrina?
- What Was the Age of the Dinosaurs?
- What Was the Great Chicago Fire?
- What Was the Ice Age?
- What Was the San Francisco Earthquake?
- What Would Greta Do?
- What's Biology all about?
- What's Chemistry All About?
- What's Physics All About?
- What's So Great About Benjamin Franklin?
- What's So Great About Jane Goodall?
- What's the Point of Maths?
- What's the Point of Science?
- What's Up in the Amazon Rainforest
- What's Up in the Gobi Desert
- What's Where on Earth? Animal Atlas
- When I Was a Turkey
- When the Earth Shakes
- When the Sky Breaks
- When We Got Lost in Dreamland
- Where Are the Constellations?
- Where Are the Galapagos Islands?
- Where Did the Forest Go
- Where do Diamonds come from?
- Where Is Antarctica?
- Where Is Easter Island?
- Where Is Mount Everest?
- Where Is Niagara Falls?
- Where Is Our Solar System?
- Where Is the Amazon?
- Where Is the Bermuda Triangle?
- Where Is the Congo?
- Where Is the Great Barrier Reef?
- Where Is the Mississippi River?
- Where Is the Serengeti?
- Where Is the Taj Mahal?
- Where Milk Comes from?
- Where On Earth?
- Who am I? Who are We? Short Riddles Posed by African Animals – Series 1
- Who am I? Who are We? Short Riddles Posed by African Animals – Series 2
- Who am I? Who are We? Short Riddles Posed by African Animals – Series 3
- Who am I? Who are We? Short Riddles Posed by African Animals – Series 4
- Who am I? Who are We? Short Riddles Posed by African Animals – Series 5
- Who Is Greta Thunberg?
- Who Is Jane Goodall?
- Who Is Neil deGrasse Tyson?
- Who Needs a Desert?
- Who Needs a Jungle?
- Who Needs a Prairie?
- Who Needs a Reef?
- Who Needs a Swamp?
- Who Needs an Iceberg?
- Who Wants a Waffle?